Yes, this should go in the default shortcuts (sorry I did not get back sooner, I just got into bluebottle today.) (the wx.stc.STC_CMD_LINEDUPLICATE bit).
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very simple, but useful (you don't lose your text in the Clipboard)
#drscript
#DuplicateLine.py
DrDocument.CmdKeyExecute(wx.stc.STC_CMD_LINEDUPLICATE)
#or direct
#DrDocument.LineDuplicate()
#jump to second line?
DrDocument.CmdKeyExecute(wx.stc.STC_CMD_LINEDOWN)
Yes, this should go in the default shortcuts (sorry I did not get back sooner, I just got into bluebottle today.) (the wx.stc.STC_CMD_LINEDUPLICATE bit).